Which option can be used for the blank?
______ are reared by the farmer for commercial purposes.
Sheep
Cattle
Poultry
All of the above
‘Cattle’ and ‘Poultry’ always agree with plural verbs. ‘Sheep’ can agree with singular or plural verbs.
'Commercial energy is mostly used for commercial purposes in factories, farms and commercial establishments'.
In the context of above statement, describe three sources of energy which are mostly used in India for commercial purposes in factories.